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Re: What's the advantage of memory protection when the ISA if full of holes.https://forum.amiga.org/index.php?topic=73833.msg841861#msg841861

Of course it would, unless you will never attempt to execute a program from the internet, or some other source. At some point, even a Havard architecture system need to ...

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https://forum.amiga.org/index.php?action=post;topic=73833.0Sun, 23 Dec 2018 21:26:09 GMThttps://forum.amiga.org/index.php?topic=73833.msg841861#msg841861Re: What's the advantage of memory protection when the ISA if full of holes.https://forum.amiga.org/index.php?topic=73833.msg841857#msg841857

Taken into account that this product does not exist, my suggestion is based on the the use of pure Harvard architecture. Meaning separate stacks and pointers, and separate add...

]]>https://forum.amiga.org/index.php?action=post;topic=73833.0Sun, 23 Dec 2018 20:22:51 GMThttps://forum.amiga.org/index.php?topic=73833.msg841857#msg841857Re: What's the advantage of memory protection when the ISA if full of holes.https://forum.amiga.org/index.php?topic=73833.msg841851#msg841851

The same trick can also be applied to the Haward architecture - to prevent this, you would need separate data and code stacks, and separate data and code stack pointers....

]]>https://forum.amiga.org/index.php?action=post;topic=73833.0Sun, 23 Dec 2018 19:09:35 GMThttps://forum.amiga.org/index.php?topic=73833.msg841851#msg841851Re: What's the advantage of memory protection when the ISA if full of holes.https://forum.amiga.org/index.php?topic=73833.msg841847#msg841847

And your analogy completely ignored the fact that I proposed delegating security to a actually secure system (one where instruction- and data- address-space is physically sepa...

]]>https://forum.amiga.org/index.php?action=post;topic=73833.0Sun, 23 Dec 2018 17:48:28 GMThttps://forum.amiga.org/index.php?topic=73833.msg841847#msg841847Re: What's the advantage of memory protection when the ISA if full of holes.https://forum.amiga.org/index.php?topic=73833.msg841845#msg841845